CVE-2026-3909highunder attackCWE-787

CVE-2026-3909: high-severity vulnerability in Google Chrome

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51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has an official Brazilian government alert.

ssvc Actcvss 8.8epss 2.3%
from disclosure to weapon
Published on NVDMar 12
CISA KEV+1d
Official alert in Brazil

Brazil's federal government published an alert, recommendation or bulletin that cites this vulnerability.

Source: CTIR Gov (GSI) and CISC Gov.br, under the CC BY-ND 3.0 license.
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗
Not affected
1 product — because the vulnerable code is not present in the product
red_hat_products
Action required by CISAfederal deadline: 2026-03-27

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

In short

A bug in Chrome's graphics engine (Skia) allows attackers to write data outside intended memory boundaries through a specially crafted webpage, potentially crashing the browser or executing malicious code.

Technical detail

Out-of-bounds write vulnerability in Skia rendering engine exploitable via crafted HTML; remote attack vector requiring user to visit malicious page; impacts memory integrity and may enable code execution or denial of service.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Google · Chrome
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